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as subject
thx
I love Programming
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this is done automatically...
int i = 0x57;
ASSERT(i == 87);
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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An integer is neither an hex or a decimal. It's an integer and that's it ! Now, it's representation (so you will print it on the screen, in a file, ...) can change from hew to decimal. But then, it's not converting an integer but converting a string.
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hex, dec, oct are just ways to represent the same integer...
... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.
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yes, the diffrent is the string's represent format, i know how to represent a integer to diffrent format string as
<br />
char *_itoa(<br />
int value,<br />
char *string,<br />
int radix <br />
);
but
int atoi( const char *string );
the function has only one param, no format param
must i write a function to do this?
I love Programming
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an integer is an integer !!!!
it is stored as a serie of bits in memory, wether you stored an hexa value, an octal one, or a decimal one...
int i = 0x05;
<hr>
int i = \005;
<hr>
int i = 5;
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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Take a look at the sprintf function instead. It will do what you are looking for (and even much more  ).
Hexa:
sprintf(Buffer,"%x",Number);
Decimal:
sprintf(Buffer,"%d",Number);
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An integer is an integer and it doesn't matter how you represent it. If you are trying to print it in different representations you may take a look to print flags[^].
Marc Soleda.
... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.
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xiaohe521 wrote:
int atoi( const char *string );
the function has only one param, no format param
must i write a function to do this?
I think you are trying to convert a hexadecimal number (which is a string) to an integer. Am I right?
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Use the strtol() function to convert numeric strings in various bases into integers.
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How do u convert a Number to an Integer..?
V
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ah... there's now azt least one interresting post on that thread...  ![Rose | [Rose]](https://codeproject.freetls.fastly.net/script/Forums/Images/rose.gif)
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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If i have a function myfunc(arg1,arg2,arg3), how can i include them, all, in a va_list variable?
if i use va_start(list, arg1), i won't have arg1 in the list and I cannot change the singnature of the function myfunc.
If I do something like:
list = (va_list)&arg1 it works for types like int, unsigned int, even char*, but not float or double. If one of the args is float, it will store in list a 0 instead of the real value.
please help 
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You'd have to include a sizeof(arg1) to account for the stack space used by arg1 and include it. Something like this:
char * ArgPtr = (char *)&arg1 - sizeof(arg1);
if( ArgPtr == (char *)&arg2 )
{
ArgPtr = (char *)&arg1 + sizeof(arg1);
}
list = (va_list)ArgPtr;
That oughta take into account whatever way the stack grows.
Bob Ciora
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Indeed something like that works. Thank you
Now something else troubles me regarding float. I make myself a list of the arguments. the list contains a char*, a float and something. I check them, they are ok. But when i'm tring to right them into a file using vfprintf(file,format,list), instead of my float value i always get a 0.00000
This is too much
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You should always use the va_ family of functions to do this.
Anyway, floats are always pushed as doubles in var arg functions. You can check some assembly listings to verify this.
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Thank you for your help.
Indeed when i use va_arg to extract my float the result is corect, so I'll just use a printf
Thanks again
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Hi
I am trying to connect to SQL server data base using NT authentication from my window service code.
_bstr_t bstrConn = _bstr_t("PROVIDER=SQLOLEDB;SERVER=SD1;DATABASE=MEDICAPT;TRUSTED_CONNECTION=YES;");
m_pConnGenGuiDB->ConnectionString = bstrConn;
m_pConnGenGuiDB->CommandTimeout = 600;
m_pConnGenGuiDB->Open("","","", adConnectUnspecified);
I am getting error Description = Login failed for user 'NT AUTHORITY\SYSTEM'
The same code works fine in any MFC application.
Any body have clue abt that
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I define a struct like this:
typedef struct
{
float blc;
float sx;
float sy;
}ScreenStruct;
Then in the .h,I define a struct pointer :
ScreenStruct *m_Screen;
At last ,I use it in the .cpp as follows:
m_Screen[0].sx=0;
When I run ,it canont be complied.And the result is that
"miss ; (before *)" or "CView::ScreenStruct miss the storage class or class declaration".
How can I do?Thank u.
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why do you declare m_Screen in the .h ? is it global or as it name tell (but you didn't), it is a class member ?
how is it initialized ?
why don't you declare ScreenStruct as a part of your CWiew class ?
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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yes.I declare the m_Screen in the Cview.h,which include the Cview class,and the m_Screen[0].cx=0 is in the Cview.cpp.
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you didn't answer my question. how do you initialize m_Screen ?
moreover, i asked if you were declaring the struct ScreenStruct directly into the CWiew derived class...
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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I am sorry.
It initialized in the construction function
Cview::Cview()
{
...
m_Screen[0].sx=m_xStart;
...
} in the Cview.cpp.
The m_xStart is a float variable.
Thank u.
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humm, it seems that you don't really know what you are doing, do you ?
where do you declare the structure ? inside the class, or outside, as a "global" type ?
notice that a talk about the class, not the .h or .cpp file !!!
class Cview {
private:
struct {
float blc;
float sx;
float sy;
} ScreenStruct m_Screen;
public:
Cview();
};
TOXCCT >>> GEII power
[toxcct][VisualCalc]
-- modified at 5:18 Wednesday 31st August, 2005
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I think I make a mistake about the naming the class.
and the struct is a gobal type .It is not in the Cview class .So it is not a member of the class Cview.
So it like this:
typedef struct
{
//...
} Struct;
class Cview
{
public: Struct m_Screen;
public: Cview();
//... };
Thank u.
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